I replaced my heater core and put everything back the way I pulled it off. Hooked everything back up. Now not only is my dash cluster, headlights, and rear hatch release button all not working. When I shift it into drive (what I think is drive) it doesnt want to shift up...
Any ideas???

 

sounds like your shift linkage might need some adjustment. everything else sounds like it might be a fuse.

 

Did you disconnect anything on your body control module behind the ashtray?

 

Yeah I had to disconnect the whole unit to get the core housing out.
I literally went through EVERY SINGLE fuse in BOTH boxes and it still wont work.

 

Took to mechanic, he has no idea whats wrong with it... any ideas???

 

Finally got it fixed, turns out that when I was reinstalling the dashboard assembly and plugging the main plugs that bolt together I bent a pin and thats what caused the issue. Will NEVER do a heatercore job again lol